87411477 has 16 divisors (see below), whose sum is σ = 122405760. Its totient is φ = 55378752.

The previous prime is 87411451. The next prime is 87411491. The reversal of 87411477 is 77411478.

It is not a de Polignac number, because 87411477 - 2¹⁹ = 86887189 is a prime.

It is a super-2 number, since 2×87411477² = 15281532622643058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87411407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6799 + ... + 14867.

It is an arithmetic number, because the mean of its divisors is an integer number (7650360).

Almost surely, 2^87411477 is an apocalyptic number.

It is an amenable number.

87411477 is a deficient number, since it is larger than the sum of its proper divisors (34994283).

87411477 is a wasteful number, since it uses less digits than its factorization.

87411477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8252.

The product of its digits is 43904, while the sum is 39.

The square root of 87411477 is about 9349.4105161769. The cubic root of 87411477 is about 443.8022362101.

Subtracting from 87411477 its reverse (77411478), we obtain a palindrome (9999999).

The spelling of 87411477 in words is "eighty-seven million, four hundred eleven thousand, four hundred seventy-seven".